Radio Broadcast - 1924, January - 84 Pages, 8.2 ... - VacuumTubeEra

258FROM THE LEFT REARRadio BroadcastShowing the arrangement of the parts and wiringthe entire hookup, in an accompanying drawing.This is the circuit to tackle first, andwith it off your hands the rest is easy sailing.With the filament circuitcompleted, try it out andsee that the jacks operatecorrectly before yougo any farther. Take theB battery and plate circuitnext, after which thegrid circuit should becompleted.INHOW TO SOLDERNEARLY every instanceof soldering, theinstrument end has beentaken care of by firsthaving been tinned. Ifyou will do the same tothe bus wire after it hasbeen bent to the desiredshape, you will find uponapplying the iron to theparts to be joined thatthey will knit neatly withoutthe usual droppingof solder into the set.The point to bear in mindwhen soldering is this:both members to be solderedmust come up tothe same heat, and thisis not attained by brisklyrubbing the solderingiron over the parts to besoldered, but is obtained,instead, by first having ahot, clean iron, which issimply held against theparts to be joined. Bothmembers to be solderedmust first be tinned. Inconnecting the transformers,carry the bus wireto the binding post andthen around keepingclear of the frame of thetransformer to the clip,where the wire emergingfrom the coil is attached.This method gives you atrue soldered connection.If you must use the pastesoldering compound, trybenzine instead of alcohol for removing thepaste after the joint is made.See that the C batteryis connected correctlyFROM THE RIGHT REAR